New answers tagged nice
The “nice” value ranges from -20 (top priority) to 19 (least priority). When you run nice -20 or nice -42 or any other value out of bounds, the nice value is moved to the bound. The red is simply coloring applied to nonzero values in that column.
Linux process scheduling using nice and renice commands with examples can also be found at http://www.vmexplore.com/tuning-process-scheduling/
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